The primary reason for update 4.90 was to renew the AACS encryption keys for Blu-ray disc playback. Without these updated keys, newer Blu-ray movie releases will not play on older PS3 hardware. System Performance and Stability
要理解4.90版更新，首先要了解索尼为PS3提供持续支持的独特模式。自2006年发售以来，PS3的系统固件一直在更新。早期的更新（如2.41版）主要添加新功能，例如将XMB界面整合到游戏中。而现在，更新内容则更为专注。
If you're wondering, I can if you are planning to jailbreak your console.
在一些极端情况下，更新失败后，PS3会陷入无限重启并要求更新的“更新循环”中。这种情况通常需要进入PS3的进行修复或强制重装系统。 ps3 system software update 490 upd download 2021
There are two ways to get this update on your console. The easiest method is the direct update, but if your PS3 is not connected to the internet, you will need the manual download.
In the spring of 2021, the gaming world turned its head in surprise. More than four years after Sony officially ceased major production of the PlayStation 3, the company released . While many expected the console to be permanently relegated to legacy status, this update proved that Sony still had a few backend improvements up its sleeve.
🚨 PS3 System Update 4.90 is Live! Sony has released a new system software update for the PlayStation 3. If you still use your PS3 for gaming or streaming, you will need this update to maintain your console's network features. 📥 Update Details 4.90 The primary reason for update 4
If your PS3 is offline, or if you are replacing a hard drive and need to reinstall the OS, you must download the file manually.
Use this method if your PS3 is not connected to the internet, or if the update fails to download directly.
If your console lacks internet access, or if you prefer a clean manual installation, you can download the file using a PC or mobile device. Step 1: Prepare the USB Drive More than four years after Sony officially ceased
If you are using HEN (Homebrew Enabler) or Custom Firmware (CFW), or you will lose your jailbreak.
System stability, security patches, and Blu-ray encryption key renewals. How to Download and Install PS3 Update 4.90
Download the correct file. Do NOT trust random third-party sites. The official file in 2021 had the following checksums:
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The official was released globally by Sony on February 28, 2023 . It is important to clarify a common search confusion: while users often search for terms like "ps3 system software update 490 upd download 2021", the 4.90 firmware did not exist in 2021. The system update active in June 2021 was version 4.88. Version 4.90 arrived later to provide vital stability upgrades, refresh security certificates, and renew Blu-ray player encryption keys required to read newer disc media.